:root{--color-primary: #1a7a5e;--color-primary-dark: #0f4d3c;--color-primary-light: #e3f2ec;--color-accent: #e6b800;--color-bg: #f4f7f5;--color-surface: #ffffff;--color-text: #1f2a26;--color-muted: #5b6b64;--color-danger: #b5432e;--radius: 10px;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--color-bg);color:var(--color-text)}a{color:var(--color-primary)}.app-shell{max-width:880px;margin:0 auto;padding:1.5rem}.card{background:var(--color-surface);border-radius:var(--radius);padding:1.25rem 1.5rem;box-shadow:0 1px 3px #0f4d3c14;margin-bottom:1rem}.btn{display:inline-block;background:var(--color-primary);color:#fff;border:none;border-radius:var(--radius);padding:.6rem 1.2rem;font-size:1rem;cursor:pointer;text-decoration:none}.btn:hover{background:var(--color-primary-dark)}.btn.secondary{background:transparent;color:var(--color-primary);border:1px solid var(--color-primary)}.btn.danger{background:var(--color-danger)}.btn:disabled{opacity:.5;cursor:not-allowed}input,select{width:100%;padding:.55rem .7rem;border:1px solid #cdd8d3;border-radius:var(--radius);font-size:1rem;margin-bottom:.9rem;background:#fff;color:var(--color-text)}label{font-weight:600;font-size:.9rem;color:var(--color-muted);display:block;margin-bottom:.3rem}.header{display:flex;align-items:center;justify-content:space-between;background:var(--color-primary);color:#fff;padding:.9rem 1.5rem}.header a{color:#fff;text-decoration:none;margin-left:1rem;font-size:.9rem}.header .brand{display:flex;align-items:center;gap:.6rem;font-weight:700;font-size:1.05rem}.header .brand img{height:28px;width:28px}.error{background:#fbe4de;color:var(--color-danger);border-radius:var(--radius);padding:.6rem .9rem;margin-bottom:1rem;font-size:.92rem}.success{background:var(--color-primary-light);color:var(--color-primary-dark);border-radius:var(--radius);padding:.6rem .9rem;margin-bottom:1rem;font-size:.92rem}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:.5rem .6rem;border-bottom:1px solid #e3e9e6;font-size:.92rem}.slot-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:.6rem}.slot{border:1px solid #cdd8d3;border-radius:var(--radius);padding:.6rem;text-align:center;background:#fff}.slot.frei{border-color:var(--color-primary)}.slot.belegt{background:#f1eee6;color:var(--color-muted)}.slot form{margin:0}.tag{display:inline-block;background:var(--color-primary-light);color:var(--color-primary-dark);border-radius:999px;padding:.15rem .6rem;font-size:.78rem;font-weight:600}